Teledyne 6200E - Sulfides Analyzer - Manual (Page 241)

Model 6200E Instruction Manual TROUBLESHOOTING & REPAIR
M6200E Rev: A1 241
Table 11-1: Warning Messages - Indicated Failures
WARNING
MESSAGE
FAULT CONDITION POSSIBLE CAUSES
ANALOG CAL
WARNING
The instruments A/D
circuitry or one of its
analog outputs is not
calibrated
A parameter for one of the analog outputs has been changed and the
calibration routine was not re-run
A/D circuitry failure on motherboard
Other motherboard electro9nic failure
BOX TEMP
WARNING Box Temp is < 5 ° C or
> 48 ° C.
NOTE: Box temperature typically runs ~7 o c warmer than ambient
temperature.
Poor/blocked ventilation to the analyzer.
Stopped exhaust-fan
Ambient temperature outside of specified range
CANNOT DYN
SPAN
Dynamic Span
operation failed
Measured concentration value is too high or low.
Concentration slope value to high or too low
CANNOT DYN
ZERO
Dynamic Zero
operation failed
Measured concentration value is too high.
Concentration offset value to high.
CONFIG
INITIALIZED
Configuration and
Calibration data reset
to original Factory
state.
Failed disk on chip
User erased data
CONV TEMP
WARNING
The temperature of the
H
2
S Æ SO
2
catalytic
converter is outside its
optimal operating
range.
Bad converter heater
Bad converter temperature sensor
Bad relay controlling the converter heater
Entire relay board is malfunctioning
I 2 C buss malfunction
DARK CAL
WARNING
The Dark Cal signal is
higher than 1 000 mV. Light leak in reaction cell
Shutter solenoid is not functioning
Failed relay board
I 2 C bus failure
Loose connector/wiring
PMT preamp board bad or out of cal
DATA
INITIALIZED
Data Storage in iDAS
was erased
Failed disk on chip
User cleared data
FRONT PANEL
WARN
The CPU is unable to
Communicate with the
Front Panel Display
/Keyboard
Warning only appears on serial I/O com port(s)
Front panel display will be frozen, blank or will not respond.
Failed keyboard
I 2 C buss failure
Loose connector/wiring
HVPS WARNING High voltage power
supply output is <400
V or >900 V
High voltage power supply is bad
High voltage power supply is out of cal
A/D converter circuitry is bad
IZS TEMP
WARNING
On units with IZS
options installed: The
permeation tube
temperature is Sample
chamber temperature
is
< 45°C or > 55°C
Bad IZS heater
Bad IZS temperature sensor
Bad relay controlling the IZS heater
Entire relay board is malfunctioning
I 2 C buss malfunction
Failure of thermistor interface circuitry on motherboard
PMT DET
WARNING
PMT detector output is
> 4995 mV Failed PMT
Malfunctioning PMR preamp board
A/D converter circuitry failure
PMT TEMP
WARNING PMT temperature is
Sample chamber
temperature is
< 2°C or > 12°C
Bad PMT thermo-electric cooler
Failed PMT TEC driver circuit
Bad PMT preamp board
Failed PMT temperature sensor
Loose wiring between PMT temperature sensor and PMT Preamp board
Malfunction of analog sensor input circuitry on motherboard
RCELL TEMP
WARNING
Sample chamber
temperature is
< 45°C or > 55°C
Bad reaction cell heater
Bad reaction cell temperature sensor
Bad relay controlling the reaction cell heater
Entire relay board is malfunctioning
I 2 C buss malfunction